Hi, with the default values the rotation take place but changing the value not. I bind a button to a slider action: -(IBAction)rotateXAction:(id)sender { NSLog(@"%@ \n",sender); BOOL yn = YES; _rotationX = [_sliderX intValue]; if(yn) printf("rotationX %d \n",_rotationX); // value o.k [self setNeedsDisplay:YES]; } The drawRect: will not be called. What is wrong with my code, please tell me. Uwe

I need to create timers in another thread (not on main): @implementation AppDelegate { NSThread* _worker; } - (void)applicationDidFinishLaunching:(NSNotification *)aNotification { _worker = [[NSThread alloc] initWithTarget:self selector:@selector(main) object:nil]; [_worker start]; } - (void)main { [NSTimer scheduledTimerWithTimeInterval:1 target:self selector:@selector(timer_tick:) userInfo:nil repeats:YES]; [NSThread sleepForTimeInterval:INFINITY]; NSLog(@"**********************"); } - (void)timer_tick:(NSTimer*)timer { NSLog(@"%@", NSThread.currentThread); } The timer never gets fired. What's wrong with my code?

Is there any way to tell if the user clicked X button in windowWillClose delegate method? - (void)windowWillClose:(NSNotification *)notification

We are using Material Textfield iOS component (as directed by our client), https://github.com/material-components/material-components-ios/blob/develop/components/TextControls/README.md , after ios 17.5.1 update, for all the material textfield on some iphone 14+ models there is a keyboard appearance issue, the keyboard starts to appear but dismisses immediately on tap of any textfeild,i.e material textfield component, apple's uitextfield works properly, we have an iphone 14+ with ios 17.5.1, for us it works without any issues, our app was uploaded using xcode 14.2, not sure how to fix this issue as we are not able to reproduce it, couple of users have reported this issue, it however works on all other iphone models!!! Any help would be greatly appreciated , i understand this is a third party SDK, but how to simulate this bug, if it is happening only on some devices and on the same device models we have, are working.

I rewrite an old project since OpenGL is deprecated and the downgrade to High Sierra goes with the lost of the old project. Here is the drawRect: - (void)drawRect:(NSRect)dirtyRect { [super drawRect:dirtyRect]; if(backgroundColor == 1) glClearColor(0.95f, 1.0, 1.0f, 1.0); else glClearColor(0.0f, 0.0f, 0.0f, 1.0f); glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); glLoadIdentity(); glTranslatef(0.0 ,0.0, -10.0); // After mistake I wrote PushMatrix() glTranslatef(-0.01 ,-0.01, -10.0); // Screen Shot 0 // glTranslatef(-0.25 ,-0.25, -10.0); Screen Shot 1 glLineWidth(1.0); glRotated(rotationX, 1, 0, 0); glRotated(rotationY, 0, 1, 0); glCallList(axes); // After mistake I wrote PopMatrix() // Axes Vertices of xx,y,z are 1.0 // With vertices +/-0.99 nothing is drawn [self glError]; [self.openGLContext flushBuffer]; } I hope you Accept my Text and hope you can help me ! Mit freundlichen Grüßen Uwe Screen Shot 0 Screen Shot 1

We implemented passkeys Autofill feature in iOS 16.6. Later verified in iOS 17.0 as well. But when we upgraded to iOS 17.5, the available passkeys autofill prompt is disappeared now. No code changes were done from our side. Also upgraded to iOS 17.5.1 and checked, still doesn’t show the prompt on the keyboard. For autofill we are calling 'performAutoFillAssistedRequests()' API on our ASAuthorizationController after fetching assertion options response from our Relying-Party. Our textFields content type is set to ‘username’. Additional Info: Before making the performAutoFillAssistedRequests() API call, when we click on the ‘Passwords’ icon on keyboard, it only shows the passwords saved on iPhone. But after making the call, we can see available passkeys as well in the list. We are making the fetch assertion options response call on textField delegate after typing more than two characters. I already raised a bug in Feedback Assistant on this - FB13809196. I attached a video and sysdiag file there.

Hi, For the very same plugin dlopen() sometimes fails. The library is present but sometimes it returns NULL and sometimes a valid plugin handle. Here is the code: char *filename; void *plugin_so; filename = "/Applications/com.example.MyApp/Contents/Plugins/myplugin.dylib"; plugin_so = dlopen(filename, RTLD_NOW); I have debugged using lldb checked filename and it is present. The myplugin.dylib file supports 2 architectures, arm64 and x86_64. regards, Joël

I'm using Network to establish a connection to various SMTP servers. For SMTP servers that use SSL on port 465, using the following code to establish the connection and communicate with the server works fine (read/write code omitted): nw_endpoint_t endpoint = nw_endpoint_create_host("smtp.example.com", "465"); nw_parameters_t parameters = nw_parameters_create_secure_tcp(NW_PARAMETERS_DEFAULT_CONFIGURATION, NW_PARAMETERS_DEFAULT_CONFIGURATION); nw_connection_t connection = nw_connection_create(endpoint, parameters); nw_connection_set_queue(connection, dispatch_get_main_queue()); nw_connection_set_state_changed_handler(connection, ^(nw_connection_state_t state, nw_error_t error) { //... } nw_connection_start(connection); For servers on port 587 that require an insecure connection at start then renegotiate a TLS handshake with the STARTTLS command, I change the parameters like so: nw_parameters_t parameters = nw_parameters_create_secure_tcp(NW_PARAMETERS_DISABLE_PROTOCOL, NW_PARAMETERS_DEFAULT_CONFIGURATION); This does allow me to establish the connection to the SMTP server but I'm stumped on how to initiate TLS on the established connection after invoking the STARTTLS command and receiving an OK response from the SMTP server. How do I add TLS options to an existing connected nw_connection_t connection?

I'm making a Swift Program. I got a .a file that builded from some c++ scripts,and I can see some fuctions in it by commed "nm *.a", and a .h file like this My question is how to call the fuctions in .a like "testDebug",I can call from c# like [DllImport("__Internal")] private static extern void testDebug(); Google's answer always with a right .h file，Maybe I should make .h file correct first. Any reply would be greatly appreciated.

I have a sample iOS app in Xcode that I run in the iOS 17.5 Simulator. It creates a WKWebView and configures a proxy via the ProxyConfiguration API, it works as expected unless the proxy tries to establish mTLS. It seems there is no way to handle the client certificate request when using a proxy. If I navigate to a page that requests mTLS without a proxy configured, it works as expected. Here is a minimal repro: #import "ViewController.h" #import <WebKit/WebKit.h> @import Foundation; @import WebKit; @interface ViewController () <WKNavigationDelegate> @property (nonatomic,strong) WKWebView* webView; @property (nonatomic, strong) WKWebViewConfiguration * webConfig; @end @implementation ViewController - (void)loadView { [super loadView]; nw_protocol_options_t tls_options = nw_tls_create_options(); sec_protocol_options_t sec_options = nw_tls_copy_sec_protocol_options(tls_options); sec_protocol_options_set_challenge_block( sec_options, ^(sec_protocol_metadata_t metadata, sec_protocol_challenge_complete_t challenge_complete) { NSLog(@"Inside of challenge block"); challenge_complete(nil); }, dispatch_get_main_queue()); nw_endpoint_t proxy_endpoint = nw_endpoint_create_host(GetHost(), GetPort()); nw_relay_hop_t relay = nw_relay_hop_create(nil, proxy_endpoint, tls_options); nw_proxy_config_t proxy_config = nw_proxy_config_create_relay(relay, nil); nw_proxy_config_add_match_domain(proxy_config, "api.ipify.org"); self.webConfig = [[WKWebViewConfiguration alloc] init]; self.webConfig.websiteDataStore = [WKWebsiteDataStore nonPersistentDataStore]; self.webConfig.websiteDataStore.proxyConfigurations = @[ proxy_config ]; self.webView = [[WKWebView alloc] initWithFrame:self.view.frame configuration:self.webConfig]; self.webView.navigationDelegate = self; [self.view addSubview:self.webView]; } - (void)viewDidLoad { [super viewDidLoad]; NSLog(@"%s",__func__); NSURL* url = [[NSURL alloc] initWithString:@"https://api.ipify.org"]; NSURLRequest* request = [[NSURLRequest alloc] initWithURL:url]; [self.webView loadRequest:request]; } - (void)webView:(WKWebView *)webView didStartProvisionalNavigation:(WKNavigation *)navigation { NSLog(@"%s",__func__); } - (void)webView:(WKWebView *)webView didFailProvisionalNavigation:(WKNavigation *)navigation withError:(NSError *)error { NSLog(@"%s. Error %@",__func__,error); } - (void)webView:(WKWebView *)webView didReceiveAuthenticationChallenge:(NSURLAuthenticationChallenge *)challenge completionHandler:(void (^)(NSURLSessionAuthChallengeDisposition, NSURLCredential *))completionHandler { NSLog(@"%s",__func__); NSLog(@"protection space: %@", challenge.protectionSpace.authenticationMethod); completionHandler(NSURLSessionAuthChallengePerformDefaultHandling, nil); } @end The logs for this code show: -[ViewController viewDidLoad] -[ViewController webView:didStartProvisionalNavigation:] -[ViewController webView:didFailProvisionalNavigation:withError:]. Error Error Domain=NSURLErrorDomain Code=-1206 "The server “api.ipify.org” requires a client certificate." If we don't set up the ProxyConfiguration and navigate to a site that requires mTLS, the logs look like this: -[ViewController viewDidLoad] -[ViewController webView:didReceiveAuthenticationChallenge:completionHandler:] protection space: NSURLAuthenticationMethodServerTrust -[ViewController webView:didReceiveAuthenticationChallenge:completionHandler:] protection space: NSURLAuthenticationMethodClientCertificate -[ViewController webView:didStartProvisionalNavigation:] //... Eventually the request fails but the key difference is that didReceiveAuthenticationChallenge was invoked. When using the ProxyConfiguration neither that function nor the block we set via sec_protocol_options_set_challenge_block were run. I also tried to provide the client identity via sec_protocol_options_set_local_identity to no avail, and I've tried configuring these options too but they had no effect sec_protocol_options_add_tls_application_protocol(sec_options, "h2"); sec_protocol_options_set_max_tls_protocol_version(sec_options, tls_protocol_version_TLSv13); sec_protocol_options_set_peer_authentication_required(sec_options, true); Am I missing something? Or is this a bug in the ProxyConfiguration API?

Problem Statement: Unable to import .h file from an ObjC SPM to a .h file in an ObjC file in a framework with mix of ObjC and Swift code The issue is: in order to support access of ObjC file in Swift code in a framework we need to use umbrella header (in place of bridging header). Once the file is imported in Umbrella header and made public it will no longer allow import of .h file from package in its interface Project Structure: a. Package: ObjCPackage ObjCPackage |- Package.swift |- ObjCPackage MathsUtilities.h (class interface) MathsUtilities.m (class implementation) NiceLogs.h (protocol) b. Project: ObjCSwiftFramework ObjCSwiftFramework |- ObjCSwiftFramework.h (umbrella header) |- Calculation.h (objc class interface) |- Calculation.m (objc class implementation) |- SwiftCalci.swift (swift class) Details: #import <ObjCSwiftFramework/Calculation.h> added in ObjCSwiftFramework.h as Calculation has to be used in SwiftCalci Calculation.h marked as public in target membership in Xcode so that it can be added in umbrella header ObjCSwiftFramework.h #import "NiceLogs.h" in Calculation.h gives error Here is a small sample which I created to demonstrate the problem: ObjCSwiftFramework

I have an Electron app on macOS Sonoma (Intel arch). It has a native addon (app.node) using node-addon-api. Recently it crashed, with the stack trace (given below). What is the CF_IS_OBJC function inside the CFDataGetBytePtr function, and why did it crash there? [NSEvent addGlobalMonitorForEventsMatchingMask:NSEventMaskKeyDown handler:^(NSEvent *event) { // code using CFDataGetBytePtr function }]; [NSEvent addLocalMonitorForEventsMatchingMask:NSEventMaskKeyDown handler:^NSEvent *_Nullable(NSEvent *event) { // code using CFDataGetBytePtr function return event; }]; I have key events monitors attached using addGlobalMonitorForEventsMatchingMask and addLocalMonitorForEventsMatchingMask in my native code and they use the CFDataGetBytePtr function there. So I think the issue happened in the key event monitor handler when calling the CFDataGetBytePtr function because my native addon app.node is also present in the trace. Also from the third and fourth entry in the stack trace, it seems like it happened while the app was updating. OS Version: macOS 14.4 (23E214) Report Version: 104 Crashed Thread: 5490 Application Specific Information: Fatal Error: EXC_BAD_ACCESS / KERN_INVALID_ADDRESS / 0x0 Thread 5490 Crashed: 0 CoreFoundation 0x19c970118 CF_IS_OBJC 1 CoreFoundation 0x19c83b280 CFDataGetBytePtr 2 .app.desktop.1inmRz 0x104a5bec0 &lt;unknown&gt; 3 .app.desktop.1inmRz 0x104a57b28 &lt;unknown&gt; 4 app.node 0x104a80a7c [inlined] Napi::details::CallbackData&lt;T&gt;::Wrapper::lambda::operator() (napi-inl.h:117) 5 app.node 0x104a80a7c Napi::details::WrapCallback&lt;T&gt; (napi-inl.h:79) 6 app.node 0x104a80a24 Napi::details::CallbackData&lt;T&gt;::Wrapper (napi-inl.h:112) 7 Electron Framework 0x11472e5e0 v8impl::(anonymous namespace)::FunctionCallbackWrapper::Invoke (js_native_api_v8.cc:441) 8 &lt;unknown&gt; 0x147e105f8 &lt;unknown&gt; 9 &lt;unknown&gt; 0x1401d0814 &lt;unknown&gt; 10 &lt;unknown&gt; 0x1401d0a9c &lt;unknown&gt; 11 &lt;unknown&gt; 0x147f19368 &lt;unknown&gt; 12 &lt;unknown&gt; 0x147e0aab0 &lt;unknown&gt; 13 &lt;unknown&gt; 0x1401d0e00 &lt;unknown&gt; 14 &lt;unknown&gt; 0x1401d1ac0 &lt;unknown&gt; 15 &lt;unknown&gt; 0x147f19368 &lt;unknown&gt; 16 &lt;unknown&gt; 0x147e0aab0 &lt;unknown&gt; 17 &lt;unknown&gt; 0x1401d1494 &lt;unknown&gt; 18 &lt;unknown&gt; 0x1401d20dc &lt;unknown&gt; 19 &lt;unknown&gt; 0x147e4c1b4 &lt;unknown&gt; 20 &lt;unknown&gt; 0x147f1b5f8 &lt;unknown&gt; 21 &lt;unknown&gt; 0x147e3b754 &lt;unknown&gt; 22 &lt;unknown&gt; 0x147e0b618 &lt;unknown&gt; 23 Electron Framework 0x10ee0c49c v8::internal::(anonymous namespace)::Invoke (simulator.h:178) 24 Electron Framework 0x10ee0d08c v8::internal::(anonymous namespace)::InvokeWithTryCatch (execution.cc:475) 25 Electron Framework 0x10ee0d1e0 v8::internal::Execution::TryRunMicrotasks (execution.cc:576) 26 Electron Framework 0x10ee37364 v8::internal::MicrotaskQueue::PerformCheckpoint (microtask-queue.cc:176) 27 Electron Framework 0x1146cce9c node::InternalCallbackScope::Close (callback.cc:137) 28 Electron Framework 0x1146ccb64 node::InternalCallbackScope::~InternalCallbackScope (callback.cc:92) 29 Electron Framework 0x1147112b4 node::Environment::RunTimers (env.cc:1376) 30 Electron Framework 0x10daf9980 uv__run_timers (timer.c:178) 31 Electron Framework 0x10dafcb3c uv_run (core.c:465) 32 Electron Framework 0x10dc944d4 electron::NodeBindings::UvRunOnce (node_bindings.cc:891) 33 Electron Framework 0x110e2016c base::TaskAnnotator::RunTaskImpl (callback.h:156) 34 Electron Framework 0x110e3cea4 base::sequence_manager::internal::ThreadControllerWithMessagePumpImpl::DoWork (task_annotator.h:89) 35 Electron Framework 0x110e8851c base::MessagePumpCFRunLoopBase::RunWorkSource (message_pump_apple.mm:444) 36 Electron Framework 0x10da7ad7c base::apple::CallWithEHFrame 37 Electron Framework 0x110e876a4 base::MessagePumpCFRunLoopBase::RunWorkSource (message_pump_apple.mm:415) 38 CoreFoundation 0x19c89deac __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ 39 CoreFoundation 0x19c89de40 __CFRunLoopDoSource0 40 CoreFoundation 0x19c89dbb0 __CFRunLoopDoSources0 41 CoreFoundation 0x19c89c79c __CFRunLoopRun 42 CoreFoundation 0x19c89be08 CFRunLoopRunSpecific 43 HIToolbox 0x1a7036ffc RunCurrentEventLoopInMode 44 HIToolbox 0x1a7036e38 ReceiveNextEventCommon 45 HIToolbox 0x1a7036b90 _BlockUntilNextEventMatchingListInModeWithFilter 46 AppKit 0x1a00f496c _DPSNextEvent 47 AppKit 0x1a08e6de8 -[NSApplication(NSEventRouting) _nextEventMatchingEventMask:untilDate:inMode:dequeue:] 48 AppKit 0x1a00e7cb4 -[NSApplication run] 49 Electron Framework 0x110e89244 base::MessagePumpNSApplication::DoRun (message_pump_apple.mm:805) 50 Electron Framework 0x110e87068 base::MessagePumpCFRunLoopBase::Run (message_pump_apple.mm:156) 51 Electron Framework 0x110e3d9a0 base::sequence_manager::internal::ThreadControllerWithMessagePumpImpl::Run (thread_controller_with_message_pump_impl.cc:646) 52 Electron Framework 0x110e05a98 base::RunLoop::Run (run_loop.cc:134) 53 Electron Framework 0x10ffcbcd0 content::BrowserMainLoop::RunMainMessageLoop (browser_main_loop.cc:1094) 54 Electron Framework 0x10ffcd744 content::BrowserMainRunnerImpl::Run (browser_main_runner_impl.cc:158) 55 Electron Framework 0x10ffc964c content::BrowserMain (browser_main.cc:34) 56 Electron Framework 0x10de12aa8 content::RunBrowserProcessMain (content_main_runner_impl.cc:712) 57 Electron Framework 0x10de13b1c content::ContentMainRunnerImpl::RunBrowser (content_main_runner_impl.cc:1299) ...

My app is crashing in CoreGraphics. As per the observations, it started crashing for Mac OS 14.4 and 14.4.1 on Arm machines. It is observed on multiple machines. Can someone please help on this? Following is the backtrace: Process: MyApp [1300] Path: /Applications/MyApp.app/Contents/MacOS/MyApp Identifier: com.MyCompany.MyApp Version: 7.2.3 (???) Code Type: ARM-64 (Native) Parent Process: launchd [1] User ID: 502 Date/Time: 2024-04-23 20:48:08.7647 +0530 OS Version: macOS 14.4.1 (23E224) Report Version: 12 Anonymous UUID: 6DAE9C94-37AC-96D0-7221-3AAA99D9E5F6 Sleep/Wake UUID: 03812728-62F0-45A4-86FC-07E151462C11 Time Awake Since Boot: 11000 seconds Time Since Wake: 1385 seconds System Integrity Protection: enabled Crashed Thread: 0 Dispatch queue: com.apple.main-thread Exception Type: EXC_BAD_ACCESS (SIGSEGV) Exception Codes: KERN_INVALID_ADDRESS at 0x0000000000000008 Exception Codes: 0x0000000000000001, 0x0000000000000008 Termination Reason: Namespace SIGNAL, Code 11 Segmentation fault: 11 Terminating Process: exc handler [1300] VM Region Info: 0x8 is not in any region. Bytes before following region: 4338843640 REGION TYPE START - END [ VSIZE] PRT/MAX SHRMOD REGION DETAIL UNUSED SPACE AT START ---&gt; __TEXT 1029d8000-1029e4000 [ 48K] r-x/r-x SM=COW /Applications/MyApp.app/Contents/MacOS/MyApp Thread 0 Crashed:: Dispatch queue: com.apple.main-thread 0 CoreGraphics 0x186aabdac shape_union + 656 1 CoreGraphics 0x186aababc shape_union_with_bounds + 128 2 CoreGraphics 0x186aab9f4 CGRegionCreateUnionWithRect + 240 3 AppKit 0x184b439dc 0x18473e000 + 4217308 4 AppKit 0x184b2ad4c 0x18473e000 + 4115788 5 AppKit 0x184dc358c -[NSViewBackingLayer setNeedsDisplayInRect:] + 176 6 AppKit 0x184790874 -[NSView setNeedsDisplayInRect:] + 396 7 Foundation 0x182070914 __NSThreadPerformPerform + 264 8 CoreFoundation 0x180f21eb0 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 28 9 CoreFoundation 0x180f21e44 __CFRunLoopDoSource0 + 176 10 CoreFoundation 0x180f21bb4 __CFRunLoopDoSources0 + 244 11 CoreFoundation 0x180f207a0 __CFRunLoopRun + 828 12 CoreFoundation 0x180f1fe0c CFRunLoopRunSpecific + 608 13 HIToolbox 0x18b6bb000 RunCurrentEventLoopInMode + 292 14 HIToolbox 0x18b6bae3c ReceiveNextEventCommon + 648 15 HIToolbox 0x18b6bab94 _BlockUntilNextEventMatchingListInModeWithFilter + 76 16 AppKit 0x184778970 _DPSNextEvent + 660 17 AppKit 0x184f6adec -[NSApplication(NSEventRouting) _nextEventMatchingEventMask:untilDate:inMode:dequeue:] + 700 18 AppKit 0x18476bcb8 -[NSApplication run] + 476 19 libffi.dylib 0x191df8050 ffi_call_SYSV + 80 20 libffi.dylib 0x191e00ae0 ffi_call_int + 1212 21 _objc.cpython-39-darwin.so 0x10700a47c PyObjCFFI_Caller_SimpleSEL + 1204 22 _objc.cpython-39-darwin.so 0x107034e94 objcsel_vectorcall_simple + 768 23 Python 0x104312ddc call_function + 124 24 Python 0x104311ac0 _PyEval_EvalFrameDefault + 29288 25 Python 0x10427a720 _PyFunction_Vectorcall + 628 26 Python 0x104312ddc call_function + 124 27 Python 0x104311ac0 _PyEval_EvalFrameDefault + 29288 28 Python 0x10427a57c _PyFunction_Vectorcall + 208 29 Python 0x104312ddc call_function + 124 30 Python 0x104311a4c _PyEval_EvalFrameDefault + 29172 31 Python 0x10427a57c _PyFunction_Vectorcall + 208 32 Python 0x104312ddc call_function + 124 33 Python 0x104311ac0 _PyEval_EvalFrameDefault + 29288 34 Python 0x10427a57c _PyFunction_Vectorcall + 208 35 Python 0x104312ddc call_function + 124 36 Python 0x104311aec _PyEval_EvalFrameDefault + 29332 37 Python 0x10427a57c _PyFunction_Vectorcall + 208 38 Python 0x104312ddc call_function + 124 39 Python 0x104311aec _PyEval_EvalFrameDefault + 29332 40 Python 0x1043131a0 _PyEval_EvalCode + 620 41 Python 0x10430a7d0 PyEval_EvalCode + 80 42 MyApp 0x1029dd440 0x1029d8000 + 21568 43 MyApp 0x1029dd7c0 0x1029d8000 + 22464 44 dyld 0x180aba0e0 start + 2360

Hello, I'm trying to simulate miscellaneous crashes to test my handlers. Things works as expected with NSException and C++ exceptions, however I cannot find a way to trig a C signal. I tried with this code: NSArray *runningApplications = [NSRunningApplication runningApplicationsWithBundleIdentifier:@"com.myCompany.myApp"]; NSRunningApplication *app = runningApplications[0]; UInt32 pid = [app processIdentifier]; kill(pid, SIGABRT); It is caught by my handler, but it doesn't crash the app (although it's detached from the debugger), I can even continue using the app normally. I'm wondering if this could be related to something wrong in my handler (especially on how it ends): signal(sig, SIG_IGN); dispatch_source_t source = dispatch_source_create(DISPATCH_SOURCE_TYPE_SIGNAL, sig, 0, dispatch_get_global_queue(0, 0)); dispatch_source_set_event_handler(source, ^{ // I write some logs on disk here, then uninstall the handlers associated with this or that signal: for(int i=0; i<SignalSourceCount; i++) { if (_signalSources[i]) { dispatch_source_cancel(_signalSources[i]); _signalSources[i] = NULL; } } }); dispatch_resume(source); I've seen some examples finishing rather with exit() or abort(). Abort crashes the app as expected, however the Crash Report produced by Apple then focuses on the handler instead of the code triggering the signal... Any help appreciated, thanks

Hi, I am experience crashes with my application after code signing, this didn't happen before. Does OpenGL require special permissions? GSequencer stack-trace gtk4 crash by, Joël

Hi, My application doesn't start playback anymore after signing it with entitlements. <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd"> <plist version="1.0"> <dict> <key>com.apple.security.app-sandbox</key> <true/> <key>com.apple.security.files.user-selected.read-only</key> <true/> <key>com.apple.security.device.audio-input</key> <true/> <key>com.apple.security.device.microphone</key> <true/> <key>com.apple.security.assets.music.read-write</key> <true/> <key>com.apple.security.network.server</key> <true/> </dict> </plist> regards, Joël

Hi, I have codesigned my application and after this macos won't run the binary anymore. codesign -f -o runtime --timestamp -s "Developer ID Application: YOUR NAME (TEAM_ID)" --entitlements $HOME/workspace/GSequencer-cocoa/gsequencer-macos/macos-contrib/GSequencer.entitlements -i com.gsequencer.GSequencer --deep $HOME/workspace/GSequencer-cocoa/gsequencer-macos/build/universal/GSequencer.app Verify signature works. codesign -vv $HOME/workspace/GSequencer-cocoa/gsequencer-macos/build/universal/GSequencer.app The same for the DMG file, still doesn't work anymore. codesign -f -o runtime --timestamp -s "Developer ID Application: YOUR NAME (TEAM_ID)" $HOME/workspace/GSequencer-cocoa/gsequencer-macos/build/arm64/GSequencer-6.9.1.dmg I would love to distribute my application with code signing. Note all libraries are built using clang or clang++. I figured out that when I leave entitlements away it would launch but complains about library signatures. regards, Joël

I tried doing the outlets for all the controls, then making a nsview in the method for a button that declares a view, then I set initwithframe to be sent to a variable typed 'id' and accessing that variable I was able to add nsbuttoncell to the variable, then I added the subview to the. main tableview here's the code I used: NSView *viewptr = [[NSView alloc]init]; NSButtonCell *bCell1 = [[NSButtonCell alloc]init]; NSRect rect; [bCell1 setTitle:@"click"]; rect.size.width = 2; rect.size.height = 1; id temp,x; temp = [viewptr initWithFrame:rect]; [temp addObject:bCell1]; [_cocoa_test_scrollview addSubview:temp]; is there anything im missing? the app keeps crashing and spiting out debug messages, like: -[NSView addObject:]: unrecognized selector sent to instance 0x12ee0ae60 ( 0 CoreFoundation 0x0000000186efaccc __exceptionPreprocess + 176 1 libobjc.A.dylib 0x00000001869e2788 objc_exception_throw + 60 2 CoreFoundation 0x0000000186fad02c -[NSObject(NSObject) __retain_OA] + 0 3 CoreFoundation 0x0000000186e64cdc forwarding + 1580 4 CoreFoundation 0x0000000186e645f0 _CF_forwarding_prep_0 + 96 5 objc_cocoa_test_image_3 0x0000000100608ca4 -[AppDelegate cocoa_test_button1_add:] + 264 6 AppKit 0x000000018a881c70 -[NSApplication(NSResponder) sendAction:to:from:] + 460 7 AppKit 0x000000018a881a74 -[NSControl sendAction:to:] + 72 8 AppKit 0x000000018a8819b8 __26-[NSCell _sendActionFrom:]_block_invoke + 100 9 AppKit 0x000000018a8818e0 -[NSCell _sendActionFrom:] + 204 10 AppKit 0x000000018a881804 -[NSButtonCell _sendActionFrom:] + 88 11 AppKit 0x000000018a87ee38 NSControlTrackMouse + 1480 12 AppKit 0x000000018a87e844 -[NSCell trackMouse:inRect:ofView:untilMouseUp:] + 144 13 AppKit 0x000000018a87e6fc -[NSButtonCell trackMouse:inRect:ofView:untilMouseUp:] + 488 14 AppKit 0x000000018a87dbd0 -[NSControl mouseDown:] + 448 15 AppKit 0x000000018a87c99c -[NSWindow(NSEventRouting) _handleMouseDownEvent:isDelayedEvent:] + 3472 16 AppKit 0x000000018a807f78 -[NSWindow(NSEventRouting) _reallySendEvent:isDelayedEvent:] + 364 17 AppKit 0x000000018a807c38 -[NSWindow(NSEventRouting) sendEvent:] + 284 18 AppKit 0x000000018aecde70 -[NSApplication(NSEventRouting) sendEvent:] + 1604 19 AppKit 0x000000018ab1b8cc -[NSApplication _handleEvent:] + 60 20 AppKit 0x000000018a6cfcdc -[NSApplication run] + 512 21 AppKit 0x000000018a6a6f54 NSApplicationMain + 880 22 objc_cocoa_test_image_3 0x0000000100608a68 main + 60 23 dyld 0x0000000186a1e0e0 start + 2360 ) can anyone point me in the right direction?

In StoreKit 1 and Objective-C, how do I obtain currently active subscriptions? I'm trying to obtain this information: The currently active (i.e. valid and not refunded) subscription in a subscription group A "pending" subscription, if any (when changing subscription types mid-period), and its starting date Sadly, all StoreKit 1 documents are buried deep under StoreKit 2 docs. Using StoreKit 2 is not an option.

I'm implementing a bitonic sort in Metal with a Swift app. This requires 100's kernel dispatch calls for each of the swap stages which touch the whole array, the work required by the GPU is small. I haven't been able to get this to run fast enough in Swift and it seems its due to a high overhead for each dispatchThread command. I rewrote the test program in Objective C with a super-simple kernel function and its runs 25x faster from Objective C! Kernel function kernel void fill(device uint8_t *array [[buffer(0)]], const device uint32_t &N [[buffer(1)]], const device uint8_t &value [[buffer(2)]], uint i [[thread_position_in_grid]]) { if (i < N) { array[i] = value; } } The Swift code is: func fill(pso:MTLComputePipelineState, buffer:MTLBuffer, N: Int, passes: Int) { guard let commandBuffer = commandQueue.makeCommandBuffer() else { return } let gridSize = MTLSizeMake(N, 1, 1) var threadGroupSize = pso.maxTotalThreadsPerThreadgroup if (threadGroupSize > N) { threadGroupSize = N; } let threadgroupSize = MTLSizeMake(threadGroupSize, 1, 1); for pass in 0..<passes { guard let computeEncoder = commandBuffer.makeComputeCommandEncoder() else { return } var value:UInt8 = UInt8(pass); var NN:UInt32 = UInt32(N); computeEncoder.setComputePipelineState(pso) computeEncoder.setBuffer(buffer, offset: 0, index: 0) computeEncoder.setBytes(&NN, length: MemoryLayout<UInt32>.size, index: 1) computeEncoder.setBytes(&value, length: MemoryLayout<UInt8>.size, index: 2) computeEncoder.dispatchThreadgroups(gridSize, threadsPerThreadgroup: threadgroupSize) computeEncoder.endEncoding() } commandBuffer.commit() commandBuffer.waitUntilCompleted() } let device = MTLCreateSystemDefaultDevice()! let library = device.makeDefaultLibrary()! let commandQueue = device.makeCommandQueue()! let funcFill = library.makeFunction(name: "fill")! let pso = try? device.makeComputePipelineState(function: funcFill) var N = 16384 let passes = 100 let buffer = device.makeBuffer(length:N, options: [.storageModePrivate])! for _ in 1...10 { let startTime = DispatchTime.now() fill(pso:pso!, buffer:buffer, N:N, passes:passes) let endTime = DispatchTime.now() let elapsedTime = endTime.uptimeNanoseconds - startTime.uptimeNanoseconds print("Elapsed time:", Float(elapsedTime)/1_000_000, "ms"); } and the Objective C code (which should be almost identical) is void fill(id<MTLCommandQueue> commandQueue, id<MTLComputePipelineState> funcPSO, id<MTLBuffer> A, uint32_t N, int passes) { id<MTLCommandBuffer> commandBuffer = [commandQueue commandBuffer]; MTLSize gridSize = MTLSizeMake(N, 1, 1); NSUInteger threadGroupSize = funcPSO.maxTotalThreadsPerThreadgroup; if (threadGroupSize > N) { threadGroupSize = N; } MTLSize threadgroupSize = MTLSizeMake(threadGroupSize, 1, 1); for(uint8_t pass=0; pass<passes; pass++) { id<MTLComputeCommandEncoder> computeEncoder = [commandBuffer computeCommandEncoder]; [computeEncoder setComputePipelineState:funcPSO]; [computeEncoder setBuffer:A offset:0 atIndex:0]; [computeEncoder setBytes:&N length:sizeof(uint32_t) atIndex:1]; [computeEncoder setBytes:&pass length:sizeof(uint8_t) atIndex:2]; [computeEncoder dispatchThreads:gridSize threadsPerThreadgroup:threadgroupSize]; [computeEncoder endEncoding]; } [commandBuffer commit]; [commandBuffer waitUntilCompleted]; } int main() { NSError *error; id<MTLDevice> device = MTLCreateSystemDefaultDevice(); id<MTLLibrary> library = [device newDefaultLibrary]; id<MTLCommandQueue> commandQueue = [device newCommandQueue]; id<MTLFunction> funcFill = [library newFunctionWithName:@"fill"]; id<MTLComputePipelineState> pso = [device newComputePipelineStateWithFunction:funcFill error:&error]; // Prepare data int N = 16384; int passes = 100; id<MTLBuffer> bufferA = [device newBufferWithLength:N options:MTLResourceStorageModePrivate]; for(int it=1; it<=10; it++) { CFTimeInterval startTime = CFAbsoluteTimeGetCurrent(); fill(commandQueue, pso, bufferA, N, passes); CFTimeInterval duration = CFAbsoluteTimeGetCurrent() - startTime; NSLog(@"Elapsed time: %.1f ms", 1000*duration); } } The Swift output is: Elapsed time: 89.35556 ms Elapsed time: 63.243744 ms Elapsed time: 62.39568 ms Elapsed time: 62.183224 ms Elapsed time: 63.741913 ms Elapsed time: 63.59463 ms Elapsed time: 62.378654 ms Elapsed time: 61.746098 ms Elapsed time: 61.530384 ms Elapsed time: 60.88774 ms The objective C output is 2024-04-18 19:27:45.704 compute_test[3489:92754] Elapsed time: 3.6 ms 2024-04-18 19:27:45.706 compute_test[3489:92754] Elapsed time: 2.6 ms 2024-04-18 19:27:45.709 compute_test[3489:92754] Elapsed time: 2.6 ms 2024-04-18 19:27:45.712 compute_test[3489:92754] Elapsed time: 2.6 ms 2024-04-18 19:27:45.714 compute_test[3489:92754] Elapsed time: 2.7 ms 2024-04-18 19:27:45.717 compute_test[3489:92754] Elapsed time: 2.8 ms 2024-04-18 19:27:45.720 compute_test[3489:92754] Elapsed time: 2.8 ms 2024-04-18 19:27:45.723 compute_test[3489:92754] Elapsed time: 2.7 ms 2024-04-18 19:27:45.726 compute_test[3489:92754] Elapsed time: 2.5 ms 2024-04-18 19:27:45.728 compute_test[3489:92754] Elapsed time: 2.5 ms I compile the Swift code for Release, optimised for speed. I can't believe there should be a difference here, so what could be different, and what might I be doing wrong? thanks Adrian